public void NextWordsWorksAsExpectedFromDifferentIndex()
{
byte[] bytes = { 0xff, 0x00, 0x0f, 0xf0, 0xff, 0x00, 0x0f, 0xf0,
0xff, 0x00, 0x0f, 0xf0, 0xff, 0x00, 0x0f, 0xf0 };
var reader = new MemoryReader(bytes, 8);
ushort[][] expected =
{
new ushort[] { 0xff00, 0x0ff0 },
new ushort[] { 0xff00, 0x0ff0 },
new ushort[] { 0xff00, 0x0ff0 },
new ushort[] { 0xff00, 0x0ff0 }
};
for (int i = 2; i < expected.Length; i++)
{
var w = reader.NextWords(2);
Assert.That(w, Is.EqualTo(expected[i]));
}
Assert.That(reader.Address, Is.EqualTo(reader.Size));
Assert.That(() =>
reader.NextWords(2),
Throws.InstanceOf <InvalidOperationException>());
}
internal ZDictionary(Story story, ZText ztext)
{
this.story = story;
this.ztext = ztext;
this.address = Header.ReadDictionaryAddress(story.Memory);
var reader = new MemoryReader(story.Memory, address);
int wordSepCount = reader.NextByte();
this.wordSeparators = reader.NextBytes(wordSepCount).ConvertAll(b => (char)b).AsReadOnly();
int entryLength = reader.NextByte();
int entryCount = reader.NextWord();
int zwordsSize = story.Version <= 3 ? 2 : 3;
int dataSize = entryLength - (zwordsSize * 2);
this.entries = new List <ZDictionaryEntry>(entryCount);
for (int i = 0; i < entryCount; i++)
{
var entryAddress = reader.Address;
var entryZWords = reader.NextWords(zwordsSize);
var entryData = reader.NextBytes(dataSize);
var entryZText = ztext.ZWordsAsString(entryZWords, ZTextFlags.All);
entries.Add(new ZDictionaryEntry(entryAddress, i, entryZWords, entryZText, entryData));
}
}
//private void MemoryChanged(object sender, MemoryEventArgs e)
//{
// // Replace affected lines
// int firstLineIndex = e.Address / 16;
// int lastLineIndex = (e.Address + e.Length) / 16;
// var reader = e.Memory.CreateReader(firstLineIndex * 16);
// for (int i = firstLineIndex; i <= lastLineIndex; i++)
// {
// var address = reader.Address;
// var count = Math.Min(8, reader.RemainingBytes);
// var values = reader.NextWords(count);
// lines[i] = new MemoryLineViewModel(address, values);
// }
// // TODO: Highlight modified memory
//}
private void StoryService_StoryOpened(object sender, StoryOpenedEventArgs e)
{
var reader = new MemoryReader(e.Story.Memory, 0);
lines.BeginBulkOperation();
try
{
while (reader.RemainingBytes > 0)
{
var address = reader.Address;
ushort[] values;
if (reader.RemainingBytes >= 16 || reader.RemainingBytes % 2 == 0)
{
var count = Math.Min(8, reader.RemainingBytes / 2);
values = reader.NextWords(count);
}
else
{
// if the last line is an odd number of bytes...
// TODO: memory view always shows even number of bytes
// (padding with zeroes if necessry). Need to fix it to show odd
// number of bytes if that's the case.
var valueList = new List <ushort>();
while (reader.RemainingBytes > 0)
{
if (reader.RemainingBytes > 2)
{
valueList.Add(reader.NextWord());
}
else
{
valueList.Add((ushort)(reader.NextByte() << 8));
}
}
values = valueList.ToArray();
}
lines.Add(new MemoryLineViewModel(address, values));
}
}
finally
{
lines.EndBulkOperation();
}
PropertyChanged("HasStory");
}